(3QLGd GdTjYI aj GSGfjO GdSfI (B: s ((3OQGSI JaUjdjI Mhd QLGd GdTjYI aj GSGfjO GdcJH GdSJI(B) / s - (3GdWHSj, eMeO LhGO, s 1373 (3gLQj(B- s ((3be (B[(3GjQGf(B] : s (3eDSSI GdeYGQa GdGSdGejI, (B420 (3g`(B. = [1999]s, 1999)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B465-474.s
Keywords: (3GdMOjK (B((3TjYI(B)s -- (3JQGLe GdQhGI(B.s; (3GdMOjK (B((3TjYI(B)s -- (3GdLQM hGdJYOjd(B.s